CN216205129U - Hot air drying temperature control system for carton production - Google Patents
Hot air drying temperature control system for carton production Download PDFInfo
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- CN216205129U CN216205129U CN202122590222.1U CN202122590222U CN216205129U CN 216205129 U CN216205129 U CN 216205129U CN 202122590222 U CN202122590222 U CN 202122590222U CN 216205129 U CN216205129 U CN 216205129U
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Abstract
The utility model discloses a hot air drying temperature control system for carton production, which comprises hot air drying equipment, a temperature monitoring unit and a controller, wherein the temperature monitoring unit comprises an infrared temperature measuring sensor for detecting the surface temperature of a carton, the infrared temperature measuring sensor is used for detecting the surface temperature of the carton, a preposed amplifying circuit, a trapped wave feedback circuit and a stable amplitude noise reduction circuit are designed for processing detection signals, so that the interference of external factors is well eliminated, the controller is used for controlling the working state of the hot air drying equipment, the surface temperature of the carton is always in the optimal drying state, the hot air drying temperature control precision is improved, and the production quality of the carton is ensured.
Description
Technical Field
The utility model relates to the technical field of carton production equipment control, in particular to a hot air drying temperature control system for carton production.
Background
The existing corrugated raw paper drying equipment generally adopts a hot air type drying or boiler steam drying technology, has high energy consumption and low heat utilization efficiency, and is easy to cause environmental pollution. The utility model discloses a utility model patent of application number 201811564983.6, the patent name "corrugated medium microwave hot air drying device for carton production", its technical scheme has two symmetric distribution's microwave generator at the interior roof fixed mounting of installation room, and microwave generator's output passes through the guided wave pipe and communicates each other with the drying chamber to realize the control to the drying chamber temperature through setting up the temperature data acquisition unit. However, in the actual use process, because the temperature sensor has the timeliness problem, the response speed is not high, and the temperature sensor is easily interfered by external factors, the hot air drying temperature control effect is poor, and the product quality is influenced.
The present invention provides a new solution to this problem.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a hot air drying temperature control system for carton production.
The technical scheme for solving the problem is as follows: the utility model provides a hot-blast stoving temperature control system for carton production, includes hot-blast drying equipment, temperature monitoring unit and controller, the temperature monitoring unit is including the infrared temperature sensor who is used for detecting carton surface temperature, infrared temperature sensor's detected signal is sent into after leading amplifier circuit, trapped wave feedback circuit and the circuit processing of making an uproar falls in proper order in the controller, the controller is used for control hot-blast drying equipment's operating condition.
Preferably, the preamplification circuit comprises an operational amplifier AR1, an inverting input terminal of the operational amplifier AR1 is connected with a signal output terminal of the infrared temperature measurement sensor through a resistor R1 and is grounded through a resistor R2 and a capacitor C1 which are connected in parallel, a non-inverting input terminal of the operational amplifier AR1 is grounded, and an output terminal of the operational amplifier AR1 is connected with an inverting input terminal of the operational amplifier AR1 through a capacitor C2.
Preferably, the notch feedback circuit includes an operational amplifier AR2, an inverting input terminal of the operational amplifier AR2 is connected to an output terminal of the operational amplifier AR1, an output terminal of the operational amplifier AR2 is connected to a non-inverting input terminal of the operational amplifier AR2 through a resistor R3, and is connected to the notch module and an input terminal of the amplitude stabilizing and noise reducing circuit through a resistor R4, an output terminal of the notch module is connected to a non-inverting input terminal of the operational amplifier AR3, an inverting input terminal of the operational amplifier AR3 is connected to an output terminal of the operational amplifier AR3 through a capacitor C6, and an output terminal of the operational amplifier AR3 is connected to a non-inverting input terminal of the operational amplifier AR2 through a resistor R8.
Preferably, the amplitude stabilizing and noise reducing circuit includes a MOS transistor Q1, a drain of the MOS transistor Q1 is connected to the resistor R9 and the output end of the notch feedback circuit, and is connected to the gate of the MOS transistor Q1 and the cathode of the zener diode DZ1 through the resistor R10, the anode of the zener diode DZ1 is grounded, the source of the MOS transistor Q1 is connected to one end of the capacitor C7 and the controller through the inductor L1, and the other end of the capacitor C7 is grounded.
Preferably, the trap component comprises resistors R5-R7 and capacitors C3-C5, one ends of the resistor R5 and the capacitor C3 are connected to one end of a resistor R4, the other end of the resistor R5 is connected to the non-inverting input end of the operational amplifier AR3 through the resistor R7 and is grounded through the capacitor C4, and the other end of the capacitor C3 is connected to the non-inverting input end of the operational amplifier AR3 through the capacitor C5 and is grounded through the resistor R6.
Preferably, the drying equipment is a microwave hot air drying device.
Through the technical scheme, the utility model has the beneficial effects that: according to the utility model, the infrared temperature measurement sensor is used for detecting the temperature of the surface of the carton, and the preamplifier circuit, the trapped wave feedback circuit and the amplitude-stabilizing noise reduction circuit are designed for processing the detection signal, so that the interference of external factors is well eliminated, the hot air drying temperature control precision is improved, and the production quality of the carton is ensured.
Drawings
FIG. 1 is a schematic circuit diagram of a temperature monitoring unit according to the present invention.
Detailed Description
The foregoing and other technical and scientific aspects, features and utilities of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
The utility model provides a hot-blast stoving temperature control system for carton production, includes hot-blast drying equipment, temperature monitoring unit and controller, temperature monitoring unit is including the infrared temperature sensor who is used for detecting carton surface temperature, infrared temperature sensor's detected signal is sent into after leading amplifier circuit, trapped wave feedback circuit and the circuit processing of making an uproar falls in the steady width of cloth in proper order in the controller, the controller is used for control hot-blast drying equipment's operating condition, when specifically setting up, drying equipment is microwave hot-blast drying device.
As shown in fig. 1, the preamplifier circuit includes an operational amplifier AR1, an inverting input terminal of the operational amplifier AR1 is connected to the signal output terminal of the infrared temperature sensor through a resistor R1 and is grounded through a resistor R2 and a capacitor C1 which are connected in parallel, a non-inverting input terminal of the operational amplifier AR1 is grounded, and an output terminal of the operational amplifier AR1 is connected to the inverting input terminal of the operational amplifier AR1 through a capacitor C2.
The notch feedback circuit comprises an operational amplifier AR2, the inverting input end of an operational amplifier AR2 is connected with the output end of an operational amplifier AR1, the output end of the operational amplifier AR2 is connected with the non-inverting input end of an operational amplifier AR2 through a resistor R3, and is connected with the notch component and the input end of the amplitude stabilizing and noise reducing circuit through a resistor R4, the output end of the notch component is connected with the non-inverting input end of the operational amplifier AR3, the inverting input end of the operational amplifier AR3 is connected with the output end of the operational amplifier AR3 through a capacitor C6, and the output end of the operational amplifier AR3 is connected with the non-inverting input end of the operational amplifier AR2 through a resistor R8.
The amplitude stabilizing and noise reducing circuit comprises a MOS tube Q1, a drain electrode of the MOS tube Q1 is connected with a resistor R9 and is connected with the output end of the trap feedback circuit, the drain electrode of the MOS tube Q1 is connected with a grid electrode of the MOS tube Q1 and a cathode of a voltage stabilizing diode DZ1 through a resistor R10, an anode of the voltage stabilizing diode DZ1 is grounded, a source electrode of the MOS tube Q1 is connected with one end of a capacitor C7 and the controller through an inductor L1, and the other end of the capacitor C7 is grounded.
The trap component comprises resistors R5-R7 and capacitors C3-C5, one ends of the resistor R5 and the capacitor C3 are connected with one end of a resistor R4, the other end of the resistor R5 is connected with the non-inverting input end of the operational amplifier AR3 through the resistor R7 and is grounded through the capacitor C4, and the other end of the capacitor C3 is connected with the non-inverting input end of the operational amplifier AR3 through the capacitor C5 and is grounded through the resistor R6.
When the device is used specifically, the infrared temperature measuring sensor detects the temperature of the surface of the carton and sends a detection signal to processing; firstly, after the pre-amplification circuit performs RC low-pass noise reduction on the detection signal, the operational amplifier AR1 rapidly enhances the detection signal by using the inverse amplification principle, and the capacitor C2 plays a role in phase compensation in the operational amplification process, so that the stability of the output of the detection signal is ensured.
The trap feedback circuit adopts fortune to put ware AR2 and secondary the enlargeing to the detected signal, in order to eliminate the clutter interference detected signal precision that hot-blast drying equipment operation produced, the high frequency noise that microwave hot-blast drying device work produced can influence infrared temperature detected signal precision for example, consequently sets up the trap subassembly and handles fortune ware AR 2's output signal, utilizes the good harmful clutter in the elimination detected signal of two T trapper principles, promotes the detected signal precision. Meanwhile, the depth feedback is carried out on the detection signal by adopting the operational amplifier AR3, the trap elimination is greatly improved, and the frequency characteristic of the trap is ensured.
The amplitude stabilizing and noise reducing circuit adopts the MOS tube Q1 to improve the output signal of the trapped wave feedback circuit, and the stability of the grid conduction voltage of the MOS tube Q1 is ensured by utilizing the amplitude stabilizing characteristic of the voltage stabilizing diode DZ1, so that the output amplitude of the detection signal is ensured to have good stability, a LC filter consisting of an inductor L1 and a capacitor C7 is adopted to eliminate ripples, and the receiving precision of the controller to the detection signal is greatly improved.
The controller calculates the real-time temperature of the surface of the carton after carrying out waveform analysis processing on the detection signal, and the temperature of the surface of the carton is always in the best drying state by adjusting the working power of the microwave hot air drying device, so that the drying quality of the carton is greatly improved.
While the utility model has been described in further detail with reference to specific embodiments thereof, it is not intended that the utility model be limited to the specific embodiments thereof; for those skilled in the art to which the present invention pertains and related technologies, the extension, operation method and data replacement should fall within the protection scope of the present invention based on the technical solution of the present invention.
Claims (6)
1. The utility model provides a hot-blast stoving temperature control system for carton production, includes hot-blast drying equipment, temperature monitoring unit and controller, its characterized in that: the temperature monitoring unit comprises an infrared temperature measuring sensor for detecting the surface temperature of the carton, detection signals of the infrared temperature measuring sensor are sent into the controller after being processed by a preamplifier circuit, a trap feedback circuit and a stable amplitude noise reduction circuit in sequence, and the controller is used for controlling the working state of the hot air drying equipment.
2. The hot air drying temperature control system for carton production according to claim 1, characterized in that: the preamplification circuit comprises an operational amplifier AR1, wherein the inverting input end of the operational amplifier AR1 is connected with the signal output end of the infrared temperature measurement sensor through a resistor R1 and is grounded through a resistor R2 and a capacitor C1 which are connected in parallel, the non-inverting input end of the operational amplifier AR1 is grounded, and the output end of the operational amplifier AR1 is connected with the inverting input end of the operational amplifier AR1 through a capacitor C2.
3. The hot air drying temperature control system for carton production according to claim 2, characterized in that: the notch feedback circuit comprises an operational amplifier AR2, the inverting input end of an operational amplifier AR2 is connected with the output end of an operational amplifier AR1, the output end of the operational amplifier AR2 is connected with the non-inverting input end of an operational amplifier AR2 through a resistor R3, and is connected with the notch component and the input end of the amplitude stabilizing and noise reducing circuit through a resistor R4, the output end of the notch component is connected with the non-inverting input end of the operational amplifier AR3, the inverting input end of the operational amplifier AR3 is connected with the output end of the operational amplifier AR3 through a capacitor C6, and the output end of the operational amplifier AR3 is connected with the non-inverting input end of the operational amplifier AR2 through a resistor R8.
4. The hot air drying temperature control system for carton production according to claim 2, characterized in that: the amplitude stabilizing and noise reducing circuit comprises an MOS tube Q1, a drain electrode of an MOS tube Q1 is connected with a resistor R9 and an output end of the trap feedback circuit, and is connected with a grid electrode of the MOS tube Q1 and a cathode of a voltage stabilizing diode DZ1 through a resistor R10, an anode of the voltage stabilizing diode DZ1 is grounded, a source electrode of the MOS tube Q1 is connected with one end of a capacitor C7 and the controller through an inductor L1, and the other end of the capacitor C7 is grounded.
5. The hot air drying temperature control system for carton production according to claim 3, characterized in that: the trap component comprises resistors R5-R7 and capacitors C3-C5, one ends of the resistor R5 and the capacitor C3 are connected with one end of a resistor R4, the other end of the resistor R5 is connected with the non-inverting input end of an operational amplifier AR3 through the resistor R7 and is grounded through the capacitor C4, and the other end of the capacitor C3 is connected with the non-inverting input end of the operational amplifier AR3 through the capacitor C5 and is grounded through the resistor R6.
6. The hot air drying temperature control system for carton production according to any one of claims 1 to 5, characterized in that: the drying equipment is a microwave hot air drying device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122590222.1U CN216205129U (en) | 2021-10-27 | 2021-10-27 | Hot air drying temperature control system for carton production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122590222.1U CN216205129U (en) | 2021-10-27 | 2021-10-27 | Hot air drying temperature control system for carton production |
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| CN216205129U true CN216205129U (en) | 2022-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325813A (en) * | 2022-08-22 | 2022-11-11 | 伊岛电器(宁波)有限公司 | Temperature control method and system for terrace dryer |
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2021
- 2021-10-27 CN CN202122590222.1U patent/CN216205129U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325813A (en) * | 2022-08-22 | 2022-11-11 | 伊岛电器(宁波)有限公司 | Temperature control method and system for terrace dryer |
| CN115325813B (en) * | 2022-08-22 | 2023-07-14 | 伊岛电器(宁波)有限公司 | Temperature control method and system of terrace dryer |
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